Data

Copy and paste the text below. It is read-only. Select All

Hertzsprung-Russell Diangram (H-R Diagram) shows the relationship between surface temperature and absolute brightness of a star White dwarf the blue white core of the star that is left behind and then cools: about the size of Earth, but have a very high mass (about as large a mass as the sun) about a million times as dense as the sun; have no fuel; but glow with left over energy(very faintly) super nova the explosion of a super giant (high mass) star Nebula a large cloud of gas and dust spread out in an immense volume protostar proto-means "first" in Greek; so protostar is the first stage of a stars life. neutron star the remains of high mass stars; even smaller and denser than white dwarfs pulsar a spinning neutron star; pulsating radio sources Black hole an object with gravity so strong that nothing , not even light, can escape; detected by x-rays corona the outer, visible layer of the sun during a total solar eclipse; looks like a white halo around the sun; 'crown' in Latin Nuclear fusion requires extremely high temperatures and pressure (found in the core of the sun) hydrogen atoms join to form helium Core the central region of the sun photosphere the inner layer of the sun's atmosphere; the reddish glow that is visible around the photosphere during a total eclipse chromosphere the middle layer of the sun's atmoshphere; gasses are thick enough to be visable sunspot areas of gas on the sun's surface that are cooler than the gasses around them solar flare the sudden connection of prominences which release large amounts of magnetic energy; the energy heats up and erupts into SOLAR FLARES